Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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a boxplot helps to visualize the variability of a distribution. five st…
B. 50% of the data is between the first and third quartiles
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the table below shows the scores on a science test. find the standard d…
d. \(7.3\)
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jeanette took two tests. find her z - score for each test. (remember: t…
A. Test A: 3.25; Test B: 3.5; Test B
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determine the mean, median, mode, and midrange for this collection of c…
D. Mean is \(82.4\), median is \(82\), mode is \(88\), midrange is \(78.5\)
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compute the standard deviation for the set of data. 2,4,6,8,10 a. 2.83 …
A
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what is the median of the given data shown in the box - and - whisker p…
B. 9
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12. why is johnny the only person who can stick up to dally? a. dally k…
A. Dally knows Johnny goes through abuse at home, so he leaves him be
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what is q₁ in the given box - and - whisker plot? a. 2 b. 6.5 c. 17 d. …
B. \(6.5\)
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which foreign policy did president woodrow wilson advance as a means of…
moral diplomacy
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in 5 - card poker, find the probability of being dealt the following ha…
\(0.00049135\)
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reason: team sports allow students to connect with others in their comm…
It illustrates how those involved in team sports develop friendships with others.
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which of the following is false regarding proactive and reactive drivin…
A. A reactive approach focuses on eliminating problems before they have a chance to appear and a proactive approach is based on responding to events after they have happened.
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match the binomial probability $p(x \\leq 23)$ with the correct stateme…
B. P(there are at most 23 successes)
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what reasons support the claim? check all that apply. claim: there are …
Participants learn how to deal with winning and losing, Participants develop meaningful friendships, Participants gain teamwork skills.
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the graph shows the results of a survey of adults in country a, ages 33…
B. The result is highly unlikely because its probability, \(0.0000\), is less than \(0.05\). Thus, the sample is not a good representative sample.
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ten percent of the population is left - handed. a class of 100 students…
A. \(P(x < 11.5)\)
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the average number of pounds of red meat a person consumes each year is…
B. 0.9015
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the sample size n, probability of success p, and probability of failure…
D. No, because \(nq < 5\)
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the weights of people in a certain population are normally distributed …
D. \(157.00, 10.73\)
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match the binomial probability ( p(x < 23) ) with the correct statement…
C. P(there are fewer than 23 successes)
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determine whether the statement is true or false. if it is false, rewri…
A. The statement is false. A sampling distribution of a sample mean is approximately normal if either \(n\geq30\) or the population is normal.
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assume that the salaries of elementary school teachers in the united st…
A. 0.0475
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using what you know about the etymology of slang terms and the context …
The poster does not need to talk to a lot of people to enjoy the party. "Vibe" refers to vibration, so the poster is happy to just be present and absorb the vibrations and energy …
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about 75% of the residents in a town say that they are making an effort…
The probability is \(0.1020\). For the interpretation: We found \(P(\hat{p}>0.8) = 0.1020\), so \(P(\hat{p}<0.8)=1 - 0.1020 = 0.8980\approx89.80\%\) A. The probability that less t…
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alyssa is drafting a post for her health and wellness account about the…
Staying hydrated is crucial for maintaining optimal health. It keeps your skin supple, supports kidney function, and enhances physical performance. Make sure to drink 8 glasses of…
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an airline reports that it has been experiencing a 15% rate of no - sho…
A. 0.2451
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find the probability that in 200 tosses of a fair six - sided die, a fi…
C. \(0.9131\)
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write the binomial probability in words. then, use a continuity correct…
The probability of getting **at least** 109 successes. C. \(P(x>108.5)\)
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the height of women ages 20 - 29 is normally distributed, with a mean o…
B. It is more likely to select a sample of 12 women with a mean height less than 67.1 inches because the sample of 12 has a higher probability.
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the height of women ages 20 - 29 is normally distributed, with a mean o…
The probability of randomly selecting 1 woman with a height less than 67.1 inches is \( 0.8238 \). The probability of selecting a sample of 12 women with a mean height less than 6…
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assume that the heights of women are normally distributed with a mean o…
D. \(0.9918\)
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the line graph shown to the right shows the attendance at each champion…
67000
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assume that the heights of men are normally distributed with a mean of …
D. 0.0021
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a coffee machine dispenses normally distributed amounts of coffee with …
C. \( 0.9332;0.6915 \)
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what does the following sentence mean in english: \hace tres meses que …
It's been three months that I have known Juan.
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use the central limit theorem to find the mean and standard error of th…
B. \(5.80\) years, \(0.51\) years
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question 12 mark this question what does it mean to use homage as a sou…
Paying tribute to another artist or designer through your own work.
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the weights of ice cream cartons are normally distributed with a mean w…
(a) \(0.3192\) (b) \(0.0099\)
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yet im the one who dreamt our basic dream in the old world while still …
The hope expressed is for America to become a land where every man is free (as emphasized in lines like “O, let America be America again-- The land that never has been yet-- And y…
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choose the phrase that means “he/she knows the team.” select the correc…
conoce el equipo
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two fair coins are tossed (say a dime and a quarter). the two possible …
(a) \((h,h),(h,t),(t,h),(t,t)\) (b) \(\frac{1}{2}\) (c) \(\frac{1}{2}\) (d) \(\frac{1}{4}\) (e) \(\frac{1}{2}\)
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use the context clues in the sentence. king edward viii of britain chos…
to give up a throne or power
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use the context clues in the sentence. jesse moved very languidly, whil…
lazily, slowly
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use the context clues in the sentence. the sandpaper was abrasive, unli…
having a rough surface
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if the sample size is multiplied by 4, what happens to the standard dev…
D. The standard error is halved.
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use the context clues in the sentence. the next day was bleak and gray …
cold and unpleasant
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the spinner to the right is spun twice in succession to determine a two…
(a) \(\{22,23,24,32,33,34,42,43,44\}\) (b) \(\frac{2}{3}\) (c) \(\frac{2}{3}\) (d) \(\frac{2}{3}\) (e) \(\frac{2}{9}\)
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suppose the spinner shown to the right is spun once, to determine a sin…
The odds in favor of an odd number are \(1\) to \(2\)
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suppose the spinner shown to the right is spun once, to determine a sin…
\(\frac{1}{3}\)
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suppose the spinner shown to the right is spun once, to determine a sin…
\(3\)
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suppose the spinner shown to the right is spun once, to determine a sin…
\(2\)
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suppose the spinner shown to the right is spun once, to determine a sin…
\(1\)
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college math: --- exit ticket week 11 1. list the three main measures o…
Mean = $8$ Median = $7$ Mode = $6$
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original source material in contrast to the transmissional model illust…
Paraphrasing plagiarism
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5) shoe size median mode = mean =
Median \( = 8\), Mode \(=8\), Mean\(\approx7.55\)
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use context clues to help determine the meaning of the underlined word.…
To face or deal with a difficult situation
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use context clues to help determine the meaning of the underlined word.…
to give more information
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finding mode, median, mean find the mode, median, and mean for 1) goals…
Mode: \(3\) and \(5\); Median: \(5\); Mean: \(\frac{48}{11}\approx4.36\)
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suppose the spinner shown to the right is spun once, to determine a sin…
(a) \(S = \{0,1,2,3,4,5,6,7,8,9\}\) (b) \(5\) (c) \(5\) (d) \(10\) (e) \(\frac{1}{2}\) (f) \(1:1\)
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use context clues to help determine the meaning of the underlined word.…
Energized and alert
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the population mean and standard deviation are given below. find the in…
The probability is $0.5000$. A. The sample mean would be considered unusual because there is a probability less than $0.05$ of the sample mean being within this range.
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use context clues to help determine the meaning of the underlined word.…
Possible
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use context clues to help determine the meaning of the underlined word.…
Persistent and determined
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give the probability that the spinner shown would land on (a) red, (b) …
\(\frac{1}{4}\)
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about 5% of hourly paid workers in a region earn the prevailing minimum…
(a) \(0.0000\) (b) \(0.2119\) (c) \(0.9992\)
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assume that the spinner to the right cannot land on a line. assume all …
\(\frac{1}{3}\)
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give the probability that the spinner shown would land on (a) red, (b) …
\(\frac{1}{3}\)
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use the context clues in the sentence. uncle john was so jolly and greg…
friendly, enjoying company
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give the probability that the spinner shown would land on (a) red, (b) …
\(\frac{1}{3}\)
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use the context clues in the sentence. the doctor sadly told us that ou…
not able to be cured
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give the correct numerical response. the probability as a common fracti…
\(\frac{1}{2}\)
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use the context clues in the sentence. he changed his story so many tim…
complicated and difficult to understand
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a coffee machine dispenses normally distributed amounts of coffee with …
D. \(0.9332;0.6915\)
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give the correct numerical response. note that a standard deck of playi…
\(\frac{1}{52}\)
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use the context clues in the sentence. kevin had some very outlandish b…
strange
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use the context clues in the sentence. even though he wore no crown, th…
royal, noble
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determine whether the statement is true or false. if it is false, rewri…
B. The statement is false. A sampling distribution of a sample mean is approximately normal if either \(n\geq30\) or the population is normal.
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only $mu=15$, $sigma=9$, hours per week preparing for classes by readin…
a. \(H_0:\mu = 15\), \(H_1:\mu eq15\) b. Reject \(H_0\) (the program has a significant effect as \(z = 2>1.96\))
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match the binomial probability ( p(x leq 23) ) with the correct stateme…
A. P(there are at most 23 successes)
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molly joined an after - school bowling club. the club members go bowlin…
What was Molly’s average bowling score?
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assume that the heights of men are normally distributed with a mean of …
Since the closest value to \(1\) among the options (assuming there might be a typo in the problem statement values as the calculated probability is \(1\)) is not presented in a co…
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3. suppose that a researcher is interested in the effect of a new colle…
## Part a - **Null hypothesis (\(H_0\))**: The new college preparation course has no effect on the scores of the standardized critical - thinking test. - **Alternative hypothesis …
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write the binomial probability in words. then, use a continuity correct…
The probability of getting a value of \(x\) that is greater than \(64\) and less than \(73\). E. \(P(64.5 < x < 72.5)\)
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an airline reports that it has been experiencing a 15% rate of no - sho…
C. \(0.2451\)
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the weights of people in a certain population are normally distributed …
C. 160.00, 10.50
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write the binomial probability in words. then, use a continuity correct…
The probability of getting 80 or more successes. C. \(P(x > 79.5)\)
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the sample size n, probability of success p, and probability of failure…
B. No, because \(nq < 5\)
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if the sample size is multiplied by 4, what happens to the standard dev…
C. The standard error is halved.
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prefixes the prefix \post\ means \following\ or \after\. the author cho…
Something written after the actual text.
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for effective communication to occur language barriers must be overcome…
B. A word, phrase, or acronym commonly used by a group of people but not widely known by those outside the group.
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prefixes the prefix \penta\ means \five\. i doodled a pentagon - shaped…
A shape with five sides
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for effective communication to occur language barriers must be overcome…
The third option: "The body of words known by an individual."
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prefixes the prefix \bio\ means \life\. my favorite biography to read i…
A story written about a person's life.
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about 75% of the residents in a town say that they are making an effort…
The probability is \(0.0455\) For the interpretation: We found \(P(\hat{p}>0.82) = 0.0455\), which means \(P(\hat{p}<0.82)=1 - 0.0455 = 0.9545\approx95.45\%\) So the answer is A. …
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prefixes the prefix e\ means \again\. ive watched the same re - runs of…
Something that is playing again.
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prefixes the prefix \pre\ means \come before\. it is important that we …
To stop something before it happens
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a ball is thrown straight up into the air. the table shows the data col…
The maximum height of the ball was reached 2.5 seconds after it was thrown.
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5. a veterinarian uses the function ( p(x) ) to predict the weight, in …
A poodle that is 3 months old is predicted to weigh 40 pounds.
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9. a survey was given to people who owned a certain type of car. what p…
\(55\%\)
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when a population is finite, the formula that determines the standard e…
\((44.12,45.68)\)